Submersible Tinytags are monitoring sea temperatures in the Adriatic and under laboratory conditions, as part of a study into how environmental parameters affect oyster growth.
The Institute of Oceanography and Fisheries in
Split, Croatia, is dedicated to the investigation of the sea. The
scientific activity conducted covers virtually everything concerned
with sea exploration: physical, chemical, geological, biological
The Institute is involved in a 'Unity Through Knowledge' project
entitled 'Competition Between Native Ostrea Edulis and
Invasive Crassostrea Gigas Oysters in the Adriatic Sea - Effects on
the Ecosystem, Fisheries and Aquaculture.' Dr Daria Ezgeta
Balic is a Postgraduate Doctor at the Institute and as part of the
Project is investigating if there is a difference in the
sea temperature at several bivalve aquaculture sites along
the eastern Adriatic during the period of oyster spat (juvenile)
settlement. Five submersible Tinytag Aquatic 2 data
loggers were placed together with marked oysters to
monitor the temperature. Along with other environmental
information, the data is used to study how environmental
parameters affect oyster growth.
Additional Tinytag Aquatic 2
units are also used in aquaria in the laboratory to monitor
temperature during oyster feeding experiments.
From the data loggers located on the spat collectors, the
Project Team is able to analyse variations between the temperatures
at each site and try to identify any significant differences. And
from the loggers that are placed in the growth experiment in the
laboratory, the data is used to interpret the difference in the
oysters' growth, together with other environmental parameters.
Dr Balic comments, "The Tinytags have proved
reliable, they have a long battery life and they are really
user-friendly - you can really rely on them!"
Gemini Data Loggers' Aquatic 2 range is
specifically designed for underwater temperature
monitoring, either under controlled experimental
conditions, or in remote locations where their bright yellow cases
come in handy for retrieval and their battery life and memory
capacity means they can be left for long periods if required.
The photograph show the Aquatic 2 data logger in use in
experiments in the Adriatic